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Finding the Fourth Proportional to 110,780.90, 152,876.85 and 60,479.90

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Solution

The fourth proportional to 110,780.90, 152,876.85 and 60,479.90 is: 83,461.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,780.90 : 152,876.85 = 60,479.90 : x
  2. Step 2: Convert to fraction form
    110,780.90/152,876.85 = 60,479.90/x
  3. Step 3: Cross multiply
    110,780.90x = 152,876.85 × 60,479.90
  4. Step 4: Simplify right side
    110,780.90x = 9,245,975,835.93
  5. Step 5: Solve for x
    x = 9,245,975,835.93/110,780.90
  6. Step 6: Final answer
    x = 83,461.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.